These Wall Guards mount directly below the Hand Dryers using only the enclosed adhesive strips. You won't have to drill holes, stir up dust, or close your restroom to complete the installation. These Wall Guards also catch water that would otherwise ricochet off wet hands and splash onto your walls. By installing Wall Guards, you'll promote health while making your restrooms more attractive and easier to clean. Stainless Steel Stainless steel, however, is non-porous. The result: you can completely sanitize these guards with a quick wipe of a disinfectant rag.